Envelop.



No. 835,850. l' PATENTED N0V.13,19o6. M. M. GOHN.

ENVBLOP.

APPLICATION FILED NOV. 8. 1904.

nlyzeessgs:r 122 Ww f QW@ @f4 UNITED STATES PATENT OFFICE.

Speccation of Letters Patent.

Patented Nov. 13, 1906.

Applicationled November 8,1904. Serial No. 231.886.

provements in Envelops, of which the following is a specification.

My invention relates tol an improved envelop of the type having agenerally opaque surface with a more or less limited transparent areafor the addressees name and address to show through.

The object of my invention is to provide an unpunctured envelop of thischaracter which shall be simple and cheap to manufacture, practical inevery Way, and which shall offer novel and unique possibilities foradvertising.

` The invention consists of the parts and the construction andcombination of arts, as hereinafter more fully described an claimed,having reference'to the accompanying drawings, in which-l Figure 1 showsan envelop embodying my invention, in which I employ a tinted or coloredborder around the Window-o ening to coverup-signs of creeping or leedingof the preparation into the surrounding body of the pa er. Fig. 2represents an envelop with a di erent-shaped opening from that of Fig.,1 and in which the entire face of the envelop around the window isassumed to have been imprinted or 'colored to give definition to thewindow-opening and obliterate signs of cree in the transarency-producing preparation. Figs. 3 an 4 show modifications of theinvention applied to advertising purposes. l

In carrying out my invention I take la blank sheet of paper or anenvelop-blank of suitable strength and texture which is, say,semitransparent and apply to a portion of one side of the blank,generally on the inside, a preparation which has the property ofrendering trans arent the portion to which it is applied. T e remainingportion or a part of the remaining portion of the blank which forms theface of the finished envelop A is then imprinted with a suitable opaquecoloring-matter.

I employ a compound or preparation, such as paraflin-oil and resin or agrease, which produces the desired result of rendering a semitransparentpaper transparent. This preparation is stamped or printed on orotherwise v applied to the blank to provide the transparency or Windowof the desired design, and it is applied to such part of the blank Wherethe transparency is desired to appear on the face of the envelop, and itmay cover a larger or a lesser space, according to the desired size ofthe trans arency or window.

Since tlie oily preparation has a tendency to creep or bleed" beyond theborders of the space imprinted by the stamp or die by which it isapplied, and so lpossibly stain or discolor the rest of the enve op orgive a ragged appearance to the Window-opening, it is preferred, evenwhere the paper might ordinarily be deemed sufiiciently opaque, to applysome sort of coloring-.matter at least around the immediate borders ofthe transparency. This coloring-matter may be apphed sohd over the faceof the envelop around the window, as in Fig. 2, or it may take the formof graduated tints or of being shaded, or the representation of asurrounding cloud effect, as indicated at 3 in Fig. 1. In any event theeffect and object of the colored border is to give definition to thewindow-opening and obliterate or cover up the otherwise rough unfinishedoutline ofthe window resulting from the encroachments of the oil orgrease or other substance beyond its desired limits.

Usually, and perhaps preferably, the preparation'and coloring-matter areapplied on op posite sides of the blank, the preparation on the insideand the coloring on the outside.

Developing out of this idea of making an unpunctured envelop With awindow or transparency for the addressees name to appear through is theidea of changing the form or outline of this transparency to correspondwith the trade-mark, design, or advertised object of a merchant,manufacturer, advertiser, or other person, company, or rm. .In Figs. 3,4 are shown possible modifications of this idea adapted to advertisingpurposes, in which the transparency'is made to assume the shape of someadvertised article, trade-mark, or the like, together with certainletters or words, as 4, standing out uncolored and non-transparent inthe generally opaque surrounding border.

. Fig, 3 shows a transparency in the sha e of a cucumber, the trade-markof a wellknown manufacturer of a great many varieties of goods. Fig. 4shows a cigar in transparency and the words Blanco-cigar innon-transparency on colored opaque field. he number of shapes thistransparency may take is almost limitless. Different people IOO IIO

might use an envelop with a Window in the size of the trans arency, soas not in any Way.

to .interfere Wit the clear showing up of the addressees name inside.The essential feature in this connection is a window which in generaloutline is characteristic of a symbol of` trade. By symbol of trade ismeant any desi such as mentioned above or trademar characteristic ofcertain goods or the product of a certain manufactory. WherethewindoW-opening is formed by the application of a grease or e uivalentcompound to the envelop-blank, t e colored or shaded border is essentialto the production of a window of properlydefined outline. I thus producea most unique and at the same time inexpensive and effective advertisingmedium. Every one needs envelops. These advertisingenvelops can be madeat small expense. They can be made of any shape or size'and made to tthe stationery rather than the stationery made to fit the envelop.

They can be used not only for mailing but for sending out circulars andthe like by messenger. The characteristically-sha ed windoW and theassociated letters an colored background constitute a most strikingadvertisement to attract public attention-the object of all advertising.

Having thus described my invention, what I claim, and desire to secureby Letters Patent, is-

As a new article of manufacture, an envelop with an unpunctured face ofrelatively opaque stock, said envelop-face having a portion to which apreparation has been applied to render such portion transparent, and

a colored or tinted order surrounding said transparent portion for thepurpose of obliterating or concealing the eects of the tendency of thesaid preparation to creep into the 4surrounding o aque stock.

In testimony W ereof I have hereunto set my hand in presence of twosubscribing Witnesses.

MAX M'. COHN.

Witnesses:

J M. ELLIS, S. THoM.

